| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus in which a stable toner density is maintained by preventing an excessive toner density caused by the erroneous detection of a toner density sensor. SOLUTION: Toner density detection is not carried out by the toner density sensor 212 during predetermined time after a control part has replenished toner from a toner supplement part 226. The toner density detection is resumed by the toner density sensor 212 so as to detect a toner density when the replenished toner first passes the toner density sensor 212. A replenished toner density is reliably detected because the toner density detection is not carried out at timing before the toner replenished from the toner supplement part 226 first passes the toner density sensor 212. |
